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Transportation medicine

Ying Guo, YouCai Zhang, WeiHua Huang, Felcy Pavithra Selwyn, Curtis D Klaassen
BACKGROUND: Berberine (BBR) is a traditional antimicrobial herbal medicine. Recently, BBR has gained popularity as a supplement to lower blood lipids, cholesterol and glucose. Bile acids (BAs) are known to regulate blood levels of triglycerides, cholesterol, glucose and energy homeostasis, and gut flora play an important role in BA metabolism. However, whether BBR alters BAs metabolism or dose-response effect of BBR on gut flora is unknown. METHODS: In this study, the effects of various doses of BBR on the concentrations of BAs in liver and serum of male C57BL/6 mice were determined by UPLC-MS/MS, and the expression of BA-related genes, as well as the amount of 32 of the most abundant gut bacterial species in the terminal ileum and large intestine of male C57BL/6 mice were quantified by RT-PCR and Quantigene 2...
October 18, 2016: BMC Complementary and Alternative Medicine
Hideaki Kaneto, Atsushi Obata, Tomohiko Kimura, Masashi Shimoda, Seizo Okauchi, Naoki Shimo, Taka-Aki Matsuoka, Kohei Kaku
Type 2 diabetes mellitus is characterized by insulin resistance in various insulin target tissues such as the liver, adipose tissue and skeletal muscle, and insufficient insulin secretion from pancreatic β-cells. Sodium-glucose co-transporter 2 (SGLT2) inhibitors which are newly developed anti-diabetic agents decrease blood glucose levels by enhancing urinary glucose excretion and thereby function in an insulin-independent manner. SGLT2 inhibitors exert beneficial effects for the reduction of insulin resistance as well as for the preservation of pancreatic β-cell function...
October 18, 2016: Journal of Diabetes
Sarath Channavajjhala, Wenjing Jia, Mahli Jalland, Kevin OʼShaughnessy, Ian Hall, Mark Glover
OBJECTIVE: Thiazide diuretics are amongst most widely prescribed and effective anti-hypertensive medicines worldwide. Thiazides however cause Thiazide-Induced Hyponatremia (TIH), a novel and potentially important paradigm of dysregulated distal nephron sodium and water reabsorption. A priori TIH must result from excessive saliuresis and/or water reabsorption. The water and electrolyte transporter composition of Urinary Exosomes (UE) reflects their cellular origin and are a promising way to study renal dysfunction...
September 2016: Journal of Hypertension
Susanne Hafner, Sabine Haubensak, Tanusree Paul, Oliver Zolk
Background | Differences (polymorphisms) in genes encoding drug targets, drug transport proteins, or drug metabolizing enzymes may be responsible, among other factors, for the observed variation in patients' responses to medications. The field of pharmacogenetics aims to identify patients at higher genetically-determined risk of adverse effects or poor response to medication. This information would allow for modification of dosage or substitution with alternative therapy. However, there is a lack of awareness of pharmacogenetic clinical practise guidelines...
October 2016: Deutsche Medizinische Wochenschrift
James J Farrell, Jennifer Moughan, Jonathan L Wong, William F Regine, Paul Schaefer, Al B Benson, John S Macdonald, Xiyong Liu, Yun Yen, Raymond Lai, Zhong Zheng, Gerold Bepler, Chandan Guha, Hany Elsaleh
OBJECTIVES: There is a need for validated predictive markers of gemcitabine response to guide precision medicine treatment in pancreatic cancer. We previously validated human equilibrative nucleoside transporter 1 as a predictive marker of gemcitabine treatment response using Radiation Therapy Oncology Group 9704. Controversy exists about the predictive value of gemcitabine metabolism pathway biomarkers: deoxycytidine kinase (DCK), ribonucleotide reductase 1 (RRM1), RRM2, and p53R2. METHODS: Radiation Therapy Oncology Group 9704 prospectively randomized 538 patients after pancreatic resection to receive either 5-fluorouracil or gemcitabine...
November 2016: Pancreas
Noor-Ahmad Latifi, Hamid Karimi
BACKGROUND: Many burn patients are needed to be referred to a tertiary burn hospital according to the American Burn Association (ABA) criteria. The purpose of this study was to verify the reasons for referring of the burn patients to the hospital. MATERIALS AND METHODS: For 2 years, we prospectively surveyed the burn patients referred to a tertiary teaching burn hospital. Data for the following variables were collected and analyzed with SPSS software V21.0: causes of burn; age; gender; total body surface area (TBSA) measured at the referring center; TBSA measured at the receiving center; concomitant diseases and traumas; the reason for referral; condition of patients before and during the transportation; transportation time; presence of infection; presence of inhalation injury, electrical injury, and chemical injury; child abuse; insurance coverage; and results and outcomes of patients...
October 12, 2016: Burns: Journal of the International Society for Burn Injuries
Chulin Chen, Ting Kan, Shuang Li, Chen Qiu, Li Gui
OBJECTIVES: This review aimed to analyze published literature to introduce the use and implementation of standard operating procedures (SOPs) and checklists in prehospital emergency medicine and their impact on guideline adherence and patient outcome. METHODS: An English literature search was carried out using the Cochrane Library, MEDLINE, EMBASE, Springer, Elsevier, and ProQuest databases. Original articles describing the use and implementation of SOPs or checklists in prehospital emergency medicine were included...
September 28, 2016: American Journal of Emergency Medicine
Laura László, Balázs Sarkadi, Tamás Hegedűs
ABCG2/BCRP is a membrane protein, involved in xenobiotic and endobiotic transport in key pharmacological barriers and drug metabolizing organs, in the protection of stem cells, and in multidrug resistance of cancer. Pharmacogenetic studies implicated the role of ABCG2 in response to widely used medicines and anticancer agents, as well as in gout. Its Q141K variant exhibits decreased functional expression thus increased drug accumulation and decreased urate secretion. Still, there has been no reliable molecular model available for this protein, as the published structures of other ABC transporters could not be properly fitted to the ABCG2 topology and experimental data...
2016: PloS One
Tongkai Chen, Chuwen Li, Ye Li, Yi Xiang, Simon Ming Yuen Lee, Ying Zheng
Schisantherin A (SA) is a promising anti-Parkinsonism Chinese herbal medicine but with poor water solubility and challenges to be delivered to the brain. We formulated SA as nanocrystals (SA-NC), aiming to improve its solubility, pharmacokinetic profile and thus provide a potential therapeutic agent for the treatment of Parkinson's disease (PD). The rod-shaped SA-NC had a particle size of ~160 nm with 33.3% drug loading, and the nanocrystals exhibited a fast dissolution rate in vitro. The intact drug nanocrystals could be internalized into Madin-Darby canine kidney (MDCK) cells, which were followed by rapid intracellular release, and most of the drug was transported to the basolateral side in its soluble form...
October 14, 2016: Molecular Pharmaceutics
Tia Renouf, Megan Pollard
Rural and remote places like Sable Island (Nova Scotia) or François (Newfoundland) pose a challenge in delivering both health care and appropriate education that today's learners need to practice in a rural setting. This education can be difficult to deliver to students far from academic centers. This is especially true for learners and practitioners at offshore locations like ships, oil installations, or in the air when patients are transported via fixed wing aircraft or helicopter. The following editorial provides a snapshot of the setting and the challenges faced while working as a physician on a ship, in remote regions...
September 9, 2016: Curēus
Thomas E Kraft, Monique R Heitmeier, Marina Putanko, Rachel L Edwards, Ma Xenia G Ilagan, Maria A Payne, Joseph M Autry, David D Thomas, Audrey R Odom, Paul W Hruz
The glucose transporter PfHT is essential to the survival of the malaria parasite Plasmodium falciparum and has been shown to be a druggable target with high potential for pharmacological intervention. Identification of compounds against novel drug targets is crucial to combating resistance against current therapeutics. Here, we describe the development of a cell-based assay system readily adaptable to high-throughput screening that directly measures compound effects on PfHT-mediated glucose transport. Intracellular glucose concentrations are detected using a genetically encoded fluorescence resonance energy transfer (FRET)-based glucose-sensor...
October 10, 2016: Antimicrobial Agents and Chemotherapy
Shabbir Ahmed, Zhan Zhou, Jie Zhou, Shu-Qing Chen
The interindividual genetic variations in drug metabolizing enzymes and transporters influence the efficacy and toxicity of numerous drugs. As a fundamental element in precision medicine, pharmacogenomics, the study of responses of individuals to medication based on their genomic information, enables the evaluation of some specific genetic variants responsible for an individual's particular drug response. In this article, we review the contributions of genetic polymorphisms to major individual variations in drug pharmacotherapy, focusing specifically on the pharmacogenomics of phase-I drug metabolizing enzymes and transporters...
October 8, 2016: Genomics, Proteomics & Bioinformatics
Ce Yang, Jie Gao, Juan Du, Haiyan Wang, Jianxin Jiang, Zhengguo Wang
BACKGROUND: Rescue after a maritime disaster remains a great challenge in emergency medicine. OBJECTIVE: We performed an overview of rescue efforts among the victims in the sunken cruise ship Eastern Star in the 2015 Changjiang River marine disaster, as well as possible preventive measures in maritime transport situations. METHODS: The rescue records of 454 victims of the sunken ship were analyzed retrospectively. Their demographic data, rescue effects, accident inducement, and injury disposition were reviewed...
October 7, 2016: Journal of Emergency Medicine
Morag K Mansley, Jessica R Ivy, Matthew A Bailey
Hypertension is known as the "silent killer," driving the global public health burden of cardiovascular and renal disease. Blood pressure homeostasis is intimately associated with sodium balance and the distribution of sodium between fluid compartments and within tissues. On a population level, most societies consume 10 times more salt that the 0.5 g required by physiological need. This high salt intake is strongly linked to hypertension and to the World Health Organization targeting a ∼30% relative reduction in mean population salt intake to arrest the global mortality due to cardiovascular disease...
September 2016: KI Rep
Jie Liu, Yuan-Fu Lu, Wen-Kai Li, Zheng-Ping Zhou, Ying-Ying Li, Xi Yang, Cen Li, Yu-Zhi Du, Li-Xin Wei
Mercury sulfides (α-HgS, β-HgS) are frequently included in traditional medicines. Mercury is known for nephrotoxicity, their safety is of concern. To address this question, mice were orally administrated with Zuotai (54% β-HgS, 30mg/kg), α-HgS (HgS, 30mg/kg), HgCl2 (33.6mg/kg), or MeHgCl (3.1mg/kg) for 7 days, and nephrotoxicity was examined. Animal body weights were decreased by HgCl2 and to a lesser extent by MeHg, but unaltered after Zuotai and HgS. HgCl2 and MeHg produced renal tubular vacuolation, interstitial inflammation and cell degeneration with protein cysts in the tubular lumen, while these pathological lesions were mild in Zuotai and HgS-treated mice...
October 6, 2016: Toxicology Letters
Isabelle Callebaut, Brice Hoffmann, Pierre Lehn, Jean-Paul Mornon
The cystic fibrosis transmembrane conductance regulator (CFTR) protein is a member of the ATP-binding cassette (ABC) transporter superfamily that functions as an ATP-gated channel. Considerable progress has been made over the last years in the understanding of the molecular basis of the CFTR functions, as well as dysfunctions causing the common genetic disease cystic fibrosis (CF). This review provides a global overview of the theoretical studies that have been performed so far, especially molecular modelling and molecular dynamics (MD) simulations...
October 7, 2016: Cellular and Molecular Life Sciences: CMLS
Tianqiao Yong, Minglong Zhang, Diling Chen, Ou Shuai, Shaodan Chen, Jiyan Su, Chunwei Jiao, Delong Feng, Yizhen Xie
ETHNOPHARMACOLOGICAL RELEVANCE: Cordyceps militaris was recorded in the classic traditional Chinese medicine book with the main functions of "protecting liver and enhancing kidney functions", influencing serum uric acid levels. AIM OF STUDY: The aim is to investigate the hypouricemic effects and possible mechanism of C. militaris in hyperuricemic mice. MATERIALS AND METHODS: A water extract (WECM) was prepared by decocting C. militaris directly at 80 (o)C in water bath, followed by lyophilization...
October 4, 2016: Journal of Ethnopharmacology
Jennifer A Price, Ana I F Sousa Soares, Augustine D Asante, Joao S Martins, Kate Williams, Virginia L Wiseman
BACKGROUND: Despite public health care being free at the point of delivery in Timor-Leste, wealthier patients access hospital care at nearly twice the rate of poorer patients. This study seeks to understand the barriers driving inequitable utilisation of hospital services in Timor-Leste from the perspective of community members and health care managers. METHODS: This multisite qualitative study in Timor-Leste conducted gender segregated focus groups (n = 8) in eight districts, with 59 adults in urban and rural settings, and in-depth interviews (n = 8) with the Director of community health centres...
September 30, 2016: BMC Health Services Research
Yngvild S Danielsen, Guro Årdal Rekkedal, Stein Frostad, Ute Kessler
BACKGROUND: Anorexia nervosa (AN) is a debilitating psychiatric disorder associated with a wide array of negative health complications and psychiatric comorbidity. Existing evidence for AN treatment in adults is weak, and no empirically supported treatment has been reliably established. The primary objective of this study is to gain knowledge about the effectiveness of enhanced cognitive behavioral therapy (CBT-E) for anorexia nervosa delivered in a public hospital setting. Baseline predictors of treatment outcome and dropout are studied...
October 5, 2016: BMC Psychiatry
Michael R Gillings
Lateral gene transfer (LGT) has significantly influenced bacterial evolution since the origins of life. It helped bacteria generate flexible, mosaic genomes and enables individual cells to rapidly acquire adaptive phenotypes. In turn, this allowed bacteria to mount strong defenses against human attempts to control their growth. The widespread dissemination of genes conferring resistance to antimicrobial agents has precipitated a crisis for modern medicine. Our actions can promote increased rates of LGT and also provide selective forces to fix such events in bacterial populations...
October 5, 2016: Annals of the New York Academy of Sciences
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